Machine for crushing and grinding limestone-rock



(No Model.)

J. HAUSE.

MAQEIN E RQ R G E USHING AND GRINDING LIMESTONE ROCK, 8m.

Patented Apr'.v.18, 1882 INVENTOR:

ATTORNEYS.

WITNESSES I l a...

W I v BY UNITE STATES PATENT OFFICE.

JACOB HAUSE, OF OHEWSVILLE, MARYIJAND.

MACHINE FOR CRUSHING AND GRINDING L lMESTONE-ROCK, 80c.

SPECIFICATION forming part of Letters Patent No. 2 6,678, dated April18, 1882. Application filed January 4, 1882. (No model.)

To all whom it may concern:

. Be it known that I, JACOB HAUSE, ofOhewsville, in the county ofWashington and State of Maryland, have inventeda new and useful Machinefor Grinding and Pulverizing Limestone-Rock and other Hard Substances,of which the following is a full, clear, and exact description,reference being had to the accompanying drawings and letters ofreference marked thereon, in which Figure l is a side elevation of themachine without the frame. Fig. 2 is an end view of the rollers. Fig. 3is a vertical section of the frame in the line 1 2 of Fig. 4. Fig. 4 isan end elevation of the frame, and Fig. 5 is a side elevation of theframe.

Similar letters indicate like parts in all the figures.

Myinvention relates to improvements in machine for grinding andpulverizing limestonerock and other hard substances; and it consists inthe peculiar construction and arrangement of the parts, as hereinaftermore fully set forth, and pointed out in the claims.

In the accompanying drawings, A A represent the inclined frame of themachine. The outer faces of the ends of the frame A have bearings a afor the shafts of the rolls I) c, which bearings are made integral withthe ends of the frame, and each bearing is provided interiorl'y withbearing-boxes made in two parts, f, adapted to be adjusted by the screwshin the usual manner.

I) b I) represent grooved or roughened rolls, fast on their shafts m,and are employed for the purpose of crushing the larger lumps oflimestone or other hard substance; and c c c are cylindrical rolls withsmooth surfaces, intended to pulverize the material after the largelumps have been. crushed. The rolls 1) a may be of the same or differentdiameters. The

axes or shafts m of all the rolls are horizontal, and the axes of two ofthe rolls'b b on the righthand side of the machine and the axes of twoof the pulveriziug-rolls c c on the same side of the machine are in thesame vertical plane, and the axis of one of the crushing-rolls bandtheaxes of the pulverizing-rolls on the left side of the machine arealsoin the same vertical plane. The axis of the top roll b on the left'sideof the machineis below the axis of the top roll on, the right side,and each roll on the left side of the machine is arranged so as to workagainst two rolls on the opposite side of the machine, so as to increasethe crushing and pulverizing effect of the rolls.

d d represent guides for thelimestonc-rock fed into the machine at z'anddischarged at 0. The guides d d are secured to the ends of the inclinedframe A, and serve to guide. the material as it passes between thecrushing and pulverizing rolls and thence out of the machine.

a 8 represent recesses formed in the inner faces of the ends of theframe A. The recesses 0 receive the ends of the rolls and lie abovethem, their function being to prevent the material being crushed andpulverized from passing over the ends of the rolls. n represents aband-pulley secured to the shaft m on the upper crushing-roll, and ggrepresent cog-gears secured to the opposite ends of the shafts m andmeshingwith each other, whereby the rolls are revolved in the directionof'the arrows in Fig. 2. I

'What I claim, and desire to secure by Letters Patent, is-

1. The combination, with the grooved crushing-rolls b b b and smoothpulverizing-rolls c c c 0, so arranged that each roll on one side of themachine operates against tworolls on the opposite side, of guides d,arranged as set forth, substantially as described, and for the purposeset forth.

2. The combination, with the crashing and pulveriziug rolls 1) c, of theinclined frame A A, provided with recesses ea in its inner faces,substantially as described, and for-the purpose set forth.

' JACOB HAUSE. Witnesses WM. H. S'roTLER, HENRY J. POFFENBERGER.

